铝-氟-1.5-二(2-羟基-5-磺基苯基)-3-氰基甲月替显色反应的研究及应用  

Study on the Colour Reaction of Aluminium-Fluorine-DSPCF and Its Application

作　　者：黄美新[1] 熊仁钦[1] 朱理哲[1] 

机构地区：[1]湘潭工学院资源工程系,湖南湘潭411201

出　　处：《湘潭矿业学院学报》2000年第4期64-67,共4页Journal of Xiangtan Mining Institute

摘　　要：研究了氨 -氯化铵缓冲溶液中 ,铝、氟和 1.5-二 ( 2 -羟基 - 5-磺基苯基 ) - 3-氰基甲月替(DSPCF)的显色反应 .提出一个简便、快速的测定微量铝的分光光度法 .络合物的表观摩尔吸光系数为 3.51× 10 4 L·mol- 1·cm- 1.最大吸收波长为 610nm .室温下 ,显色反应在 10min内完成 .有色络合物稳定时间至少 6h .含铝 0～ 0 .4 8μg/mL范围符合比耳定律 .该法用于铅精矿中微量铝的测定 ,获得了满意的结果 .图 1,表 1,参 5.In ammonia- ammonium chloride buffer solution at pH8.5,Aluminium(Ⅲ) reacts with fluorin and 1,5 di (2 hydroxy 5 sulfophenyl) 3 cyanoformazan disodium salt(DSPCF)to form a colour complex.The wavelength of maxium absorbance of complex is 610nm,Apparent molar absorptivity is 3.51×10 4L·mol -1 ·cm -1 .The colour reaction is accomplished in 10 min under room tempreature. The colour complex is stable and can keep for at least 6 h.The Beer's law is obeyed in the range 0～0.48μg/mL for aluminium.A method of simplicity and rapidity was posed,which has been successfully applied to the determination of microa mounts aluminium in lead concentrate.1fig.,1tab.,5refs.

关 键 词：显色反应 测量 表面活性剂 铝-氟-二甲酚橙-溴化 

分 类 号：O614.31[理学—无机化学] O657.99[理学—化学]